Combined governor, pump, and thermal control



May 11,1926. 1,584,421

J. W. BATE COMBINED GOVERNOR, PUMP, AND THERMAL CONTROL:

Fil Sept. 11, 1.9 22 2 Shets-Sn'eet 1 7? iajaza May 11 1926.

J. W. BATE COMBINED GOVERNOR, PUMP, AND THERMAL CONTROL Filed Sept. 11,1922 2 Sheets-Sheet 2 yew" Z4 75 Patented May 11, 1926.

UNITED STATES PATEN JOHN W...'BATE, OF RACINE, VJISCONSIN.

' v COMBINED GQVEBNOR, PUMP, AND THERMAL CONTROL.

Application filed September 11, 1922. Serial 110,587,467.

This invention relates to a combined governor, mmp and thermal controland is fully described in the following specification and shown in theaccoi'npanying drawings in whichv Figure 1 is a partial side elevationof an engine embodying my invention;

Figure 2 is a view on the line 22 of Fig. 1; and

Figure 3 is an enlarged partial section on the line 33 of Fig. 2. p

T he invention as illustrated is shown in connection with a well knowntype of tractor engine having a cylinder bloc 10 secured to a crank-case11, and a radiator 12 con nected atthe bottom to the water-jacket of thecylinder bloc 10 by means of the pipe 1.3 and at the top by means of thereservoir 14 and elbow 15. This arrangement permits of a flow upwardthrough the elbow 15 of the hot water from the cylinders 10, acrossthrough the reservoir 14, down through the radiator 12 where it iscooled and back through the pipe 13. This is the Well knownthermo-siphon system of cooling.

This engine has the usual crank-shaft 16 upon which is keyed a pulley 17which drives the fan pulley 18 by means of a belt 19.

To these well known parts I have added the centrifugal pump 20 which isdriven by means of a pulley 21 which bears against the side of the belt19. The intake 22 of this pump connects with the bottom of the pipe 13through the T 23. The pump discharges through the pipe 24 and thefitting 25 which is rotatably mounted between the pipe 24 and the sidewall 10 of the bloc 10. This fitting terminates in a nozzle 26 whichdischarges into the passage 27 forming part of the water-jacket of thecylinder bloc 10.

The pipe 24 is rigidly held by means of the bolts 28 and the endwisepressure on the fitting 25 is maintained by means of the nut 29 threadedthereon which serves to compress the packing 30 and 31 at the two ends.

It will readily be understood that with the fitting 25 in the positionshown in Fig. 3 the stream of water directed upward in the direction ofthe elbow 15 will materially assist the flow of water due to thethermosiphon action, thereby causing a more rapid flow of water throughthe radiator 12 with the second cooling of the engine.

lVith the fitting 25 turned to a position 180 from that shown in Fig. 3,by means of thereby maintaining the jacket water and the cylinders at ahigher temperature than would normally be the case where thethermosiphon alone is depended upon to control the rate of flow.

p The pipe 24 supports the housing 33 which carries a thin flexiblediaphragm 34 of any suitable character, to the center of which a pin 85is secured. This pin extends out through the side of the housing 83 andis pivotally connected by means of a pin 36 with an operating lever 37which in turn is hingedly connected at 38 The lever 37 is connectedbymeans of the links 38 and 39 and the lever 40 to the throttle lever 41which is connected to the throttle 42 in the fuel-mixture-intake passage43.

The throttle 42 is normally held open by means of the spring 44. When,however, the speed of the engine exceeds a predetermined rate, thepressure of the water within the pipe 24 on the diaphragm 34 causes thediaphragm to move outwardly and acting through the system of leakagesmoves the throttle 42 toward closed position against the action of thespring 44. If the speed of the action further increases, the throttle 42is closed still more until finally a point is reached where the throttlewill not permit the engine to run any faster for the given load which itis then carrying.

With an increase of load at this time the engine will begin to slow downdue to the action of the throttle. As it does so the speed of the pumpwill accordingly decrease, giving a decreased pressure upon thediaphragm 34 with the result that it will be moved toward normalposition under the action of the spring 44 thereby again opening thethrottle 42 and permitting the engine to pick up under the increasedload until it has again assumed substantially its predetermined speed.

l/Vhile I have shown and described but a single embodiment of myinvention, it is to be understood that it is capable of manymodifications. Changes, therefore, in the construction and arrangementmaybe made more slo-wlyfout the elbow 15 which do not depart from thespirit and scope of the. invention as disclosed in the accompanyingclaims in which it is my intention tocover all novelty inherent in theinvention as broadly as possible in View of the prior art.

\Vhat I claim as new, and desire to secure by Letters Patent, is:

1. In combination, an internal combustion engine having a Water-jacketedcylinder, a thermo-siphon cooling device operably connected thereto, apump driven by said engine for controlling the circulation of the Water'throu 'h said Water-jacket, the discharge u b a n pipe from said pumpdeliverlng into the side of said Water-jacket, and means for controllingthe direction of discharge from said pipe to control the thermo-siphonaction of the system.

2. In combination, an internal combustion engine having a Water-jacketedcylinder, a thermo-siphon cooling device operably con nected thereto, apump driven by said engine for controlling the circulation of the Waterthrough said cooling device and Waterjacket, the discharge pipe fromsaid pump delivering into said Water-jacket, and means for directing thedischarge from said pipe to control the thermo-siphon action of thesystem.

3. In combination, an internal combustion engine having a Water-jacketedcylinder, a thermo-siphon cooling device operably connected thereto, apump driven by said engine for controlling the circulation of the Waterthrough said cooling device and waterjacket, the discharge pipe fromsaid pump terminating in a nozzle delivering at an angle into saidWater-jacket, and means for rotating said pipe to cause the flow ofWater from said nozzle to assist or retard the thermo-siphon action.

JOHN WV. BATE.

